F731USQU8HZIJ – Galaxy Z Flip5 firmware
Build F731USQU8HZIJ is a feature update for the Galaxy Z Flip5 (SM-F731U)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 18, 2026 (method) and has reached
7 regions so far. It keeps bootloader bit 8, so downgrading to the previous build F731USQS8GZI1 is still possible. Samsung still serves this file.
- Model
- SM-F731U
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 8
- First released
- Oct 18, 2026
- Regions
- 7
Rollout timeline by region
The date each region code (CSC) first received F731USQU8HZIJ, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ATT | USA (AT&T) | Oct 18, 2026 | day 0 | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
CCT | USA (Comcast) | Oct 25, 2026 | +7 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
TMB | USA (T-Mobile) | Oct 25, 2026 | +7 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
TMK | USA (MetroPCS) | Oct 25, 2026 | +7 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
USC | USA (US Cellular) | Oct 25, 2026 | +7 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
VZW | USA (Verizon) | Oct 26, 2026 | +8 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
XAA | USA (unlocked) | Oct 26, 2026 | +8 days | F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJ |
Download and release notes
samloader download -m SM-F731U -r XAA -v F731USQU8HZIJ/F731UOYN8HZIJ/F731USQU8HZIJSamsung's release notes and security patch level for this update: SM-F731U / XAA on doc.samsungmobile.com. What each part of the build number means: decode F731USQU8HZIJ.